Patch

Index: gcc/doc/invoke.texi
===================================================================
--- gcc/doc/invoke.texi (revision 185025)+++ gcc/doc/invoke.texi (working copy)@@ -19884,9 +19884,8 @@ Only one precompiled header can be used
@item
A precompiled header can't be used once the first C token is seen. You
-can have preprocessor directives before a precompiled header; you can-even include a precompiled header from inside another header, so long as-there are no C tokens before the @code{#include}.+can have preprocessor directives before a precompiled header; you cannot+include a precompiled header from inside another header.
@item
The precompiled header file must be produced for the same language as